Oscillating assembly and fan

Abstract

The utility model discloses a head shaking assembly and a fan, the head shaking assembly comprises a first motor and a second motor, a first rotating shaft of the first motor is sleeved with at least three first rolling bearings, and the end part of the first rotating shaft is provided with a second bearing seat; the rotating axis of the second motor and the rotating axis of the first motor form an included angle, the second motor is provided with a second rotating shaft, the second rotating shaft is connected with a second rolling bearing, and the second rolling bearing is installed on a second bearing seat; wherein outer rings of the at least three first rolling bearings are connected with an input wire to be communicated with an external circuit, inner rings of the at least three first rolling bearings are connected with an output wire, and the output wire is connected with the second motor to supply power. Outer rings of the at least three first rolling bearings are communicated with an external circuit through input wires, inner rings of the at least three first rolling bearings are connected with the second motor through output wires, the output wires rotate along with the second motor, the problem of winding of the output wires is solved, the phenomenon that power supply is interrupted during operation of the head shaking assembly is prevented, and use reliability and stability are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical appliances, in particular to an oscillating head assembly and a fan using the oscillating head assembly. Background Art

[0002] In the related art, the oscillating assembly of the fan generally has two drive assemblies connected in sequence. When in use, the second motor is used to drive the fan blades to rotate, and the first motor is used to drive the second motor to rotate to achieve oscillation. For a 360° oscillating fan, since the second drive component rotates continuously relative to the first drive component, the power cord of the second drive component will be entangled and broken, which will cause power interruption in the oscillating assembly during operation. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a shaking head assembly, which can eliminate the problem of power line winding and breaking.

[0004] The utility model also provides a fan using the oscillating head assembly.

[0005] According to the first aspect of the present invention, the shaking head assembly includes a first motor and a second motor, the first rotating shaft of the first motor is equipped with at least three first rolling bearings, and the end of the first rotating shaft is provided with a second bearing seat; the second motor is connected to the second bearing seat, the rotation axis of the second motor forms an angle with the rotation axis of the first motor, the second motor has a second rotating shaft, and the end of the second rotating shaft facing the first motor is connected to a second rolling bearing, and the second rolling bearing is installed on the second bearing seat; wherein, the outer rings of at least three of the first rolling bearings are connected to input wires, and the input wires are used to connect to an external circuit, and the inner rings of at least three of the first rolling bearings are connected to output wires, and the output wires are connected to the second motor to supply power to the second motor.

[0006] The shaking head assembly according to the utility model has at least the following beneficial effects:

[0007] The second rotating shaft of the second motor can drive the fan blades to rotate, thereby generating airflow. Since the rotation axis of the second motor forms an angle with the rotation axis of the first motor, the first motor drives the second motor to rotate through the first rotating shaft to achieve shaking of the head. The outer rings of at least three first rolling bearings are connected to the external circuit through input wires, and the inner rings are connected to the second motor through output wires. The rolling elements of the first rolling bearings conduct the circuit, and the output wires rotate with the second motor, eliminating the problem of output wire winding, preventing the shaking head assembly from experiencing power interruptions during operation, and improving reliability and stability in use.

[0008] According to some embodiments of the first aspect of the utility model, an avoidance plane is provided on the outer wall of the first rotating shaft, a wiring channel is formed between the avoidance plane and the inner ring of the first rolling bearing, and the output wire passes through the wiring channel.

[0009] According to some embodiments of the first aspect of the utility model, the first rotating shaft includes an inner shaft and an outer shaft, one end of the outer shaft is provided with a non-circular hole, the shape of the inner shaft matches the shape of the non-circular hole, the inner shaft is inserted into the non-circular hole, and the other end of the outer shaft is fixedly connected to the second bearing seat.

[0010] According to some embodiments of the first aspect of the utility model, the non-circular hole is a D-shaped hole, and the side wall of the D-shaped hole forms a limited rotation plane, and the limited rotation plane is arranged in parallel with the avoidance plane.

[0011] According to some embodiments of the first aspect of the utility model, the oscillating head assembly includes an insulating component, and one of the insulating components is arranged between two adjacent first rolling bearings to achieve insulation between the two adjacent first rolling bearings.

[0012] According to some embodiments of the first aspect of the utility model, the insulating component is an insulating sheet, which is annular and is mounted on the first rotating shaft, and the inner rings or outer rings of two adjacent first rolling bearings clamp one insulating sheet.

[0013] According to some embodiments of the first aspect of the utility model, the second motor is an outer rotor motor, and the outer rotor motor includes an inner stator and an outer rotor housing, the inner stator is fixedly connected to the second bearing seat, and the second rotating shaft is fixedly connected to the outer rotor housing.

[0014] According to some embodiments of the first aspect of the utility model, the second bearing seat includes a seat body and a mounting cylinder, the seat body has a bearing cavity for mounting the second rolling bearing, the mounting cylinder is arranged on the side of the seat body away from the first rotating shaft, the mounting cylinder and the bearing cavity are coaxially arranged, the inner stator is fixed to the outer wall of the mounting cylinder, a positioning ring is provided at one end of the mounting cylinder away from the seat body, the second rotating shaft passes through the inner hole of the positioning ring, a plurality of connecting rods are provided on the outer periphery of the positioning ring, and the connecting rods are connected to the inner wall of the mounting cylinder.

[0015] According to some embodiments of the first aspect of the utility model, the radial thickness of the seat body is more than twice the radial thickness of the mounting tube, and a plurality of weight-reducing grooves are provided on the end surface of the seat body facing away from the mounting tube, and the plurality of weight-reducing grooves are evenly spaced around the circumference of the bearing cavity.

[0016] The fan according to the second embodiment of the utility model includes the shaking head assembly as described in the first embodiment.

[0017] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0019] Figure 1 It is a structural schematic diagram of a shaking head assembly of an embodiment of the first aspect of the utility model;

[0020] Figure 2 It is an exploded schematic diagram of the shaking head assembly of the first embodiment of the utility model;

[0021] Figure 3 It is a front view of the shaking head assembly of the first embodiment of the utility model;

[0022] Figure 4 A cross-sectional view of an oscillating head assembly according to an embodiment of the first aspect of the utility model;

[0023] Figure 5 for Figure 4 A partial enlarged view of point A in the middle;

[0024] Figure 6 It is a schematic structural diagram of the outer shaft and the second bearing seat in an embodiment of the first aspect of the utility model.

[0025] Description of Figure Numbers:

[0026] The first motor 100, the first rotating shaft 110, the inner shaft 111, the outer shaft 112, the non-circular hole 1121, the second bearing seat 120, the seat body 121, the mounting cylinder 122, the bearing cavity 123, the positioning ring 124, and the weight reduction groove 125;

[0027] A second motor 200, a second rotating shaft 210, an inner stator 220, and an outer rotor housing 230;

[0028] A first rolling bearing 300, a wiring channel 301, and an insulating sheet 310;

[0029] A second rolling bearing 400;

[0030] Input wire 510 and output wire 520. DETAILED DESCRIPTION

[0031] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0032] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0033] In the description of the present utility model, "several" means one or more, "more" means more than two, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0034] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0035] Reference Figures 1 to 5 The first embodiment of the utility model proposes a shaking head assembly, which includes a first motor 100 and a second motor 200. Three first rolling bearings 300 are mounted on the first rotating shaft 110 of the first motor 100. The three first rolling bearings 300 provide rotation support for the first rotating shaft 110. The structure is stable and reliable. A second bearing seat 120 is arranged at the end of the first rotating shaft 110; the second motor 200 is connected to the second bearing seat 120, and the rotation axis of the second motor 200 is set to be non-parallel to the rotation axis of the first motor 100. The angle α formed by the rotation axis of the second motor 200 and the rotation axis of the first motor 100 is 10° to 20°. Figure 4 As shown, the angle α is 18°, and the angle α can also be 13°, 15°, 16°, etc., determined according to actual needs. The second motor 200 has a second shaft 210, and the second shaft 210 is connected to a second rolling bearing 400 at one end facing the first motor 100, and the second rolling bearing 400 is installed on the second bearing seat 120.

[0036] Among them, the outer rings of the three first rolling bearings 300 are connected to the input wire 510, and the inner rings of the three first rolling bearings 300 are connected to the output wire 520. The input wire 510 is used to connect the external circuit, and the output wire 520 is connected to the second motor 200, so as to realize power supply to the second motor 200.

[0037] When the shaking head assembly is in operation, the second shaft 210 of the second motor 200 drives the fan blades to rotate, thereby generating airflow and bringing coolness to the user. Since the rotation axis of the second motor 200 forms an angle with the rotation axis of the first motor 100, the first motor 100 can drive the second motor 200 to rotate through the first shaft 110, thereby shaking the head and changing the direction of the wind. The outer rings of the three first rolling bearings 300 are connected to the external circuit through the input wire 510, and the inner rings are connected to the second motor 200 through the output wire 520. The circuit is turned on through the rolling element of the first rolling bearing 300 to supply power to the second motor 200. Because the output wire 520 rotates with the second motor 200, the problem of the output wire 520 being entangled is eliminated, preventing the shaking head assembly from being interrupted in power supply during operation, thereby improving the reliability and stability of use.

[0038] It is understandable that three first rolling bearings 300 are used because the three-phase windings (U, V and W) inside the second motor 200 need to be connected to three output wires 520 to meet the power supply requirements. In addition, four first rolling bearings 300 or more first rolling bearings 300 can also be installed, and one or more sets of input wires 510 and output wires 520 can be reserved to facilitate rapid maintenance and replacement, reduce downtime, and improve user experience.

[0039] Reference Figure 4 and Figure 5 In some embodiments of the first aspect of the utility model, an avoidance plane is provided on the outer wall of the first rotating shaft 110, and a wiring channel 301 is formed between the avoidance plane and the inner ring of the first rolling bearing 300, and the output wire 520 passes through the wiring channel 301. On the one hand, considering that the inner ring of the first rolling bearing 300, the output wire 520 and the first rotating shaft 110 are relatively fixed, the wiring channel 301 provides a channel for the output wire 520 to run, which is convenient for assembly; on the other hand, it is beneficial to protect the output wire 520, prevent the output wire 520 from being squeezed by other components, and improve the reliability of use.

[0040] In addition, a channel may be designed inside the first rotating shaft 110 for the output wire 520 to pass through, which can also guide the direction of the output wire 520 and protect the output wire 520 .

[0041] Refer to 2 to Figure 5, considering that the two ends of the first rotating shaft 110 are the first motor 100 and the second bearing seat 120 respectively, if the first rotating shaft 110 is an integrated structure, the three first rolling bearings 300 cannot be installed. The optional solution is that the second bearing seat 120 is a detachable structure, or the first rotating shaft 110 is a split structure, wherein the first rotating shaft 110 is a split structure, which is better for easy processing and assembly. Therefore, in some embodiments of the first aspect of the utility model, the first rotating shaft 110 includes an inner shaft 111 and an outer shaft 112, the inner shaft 111 is connected to the first motor 100 (to install the rotor or stator), the outer shaft 112 is connected to the second bearing seat 120, and a non-circular hole 1121 is provided at one end of the outer shaft 112, the shape of the inner shaft 111 matches the shape of the non-circular hole 1121, and the inner shaft 111 is inserted into the non-circular hole 1121 to complete the assembly of the first rotating shaft 110.

[0042] During assembly, the three first rolling bearings 300 are assembled with the outer shaft 112 first, and then the inner shaft 111 is inserted into the non-circular hole 1121 . The non-circular hole 1121 can restrict the inner shaft 111 to achieve torque transmission.

[0043] Reference Figure 2 In some embodiments of the first aspect of the utility model, the non-circular hole adopts a D-shaped hole, and the side wall of the D-shaped hole forms a limited rotation plane. The limited rotation plane and the avoidance plane are arranged in parallel, which simplifies the structure of the outer shaft 112 and facilitates processing.

[0044] It can be understood that since the three first rolling bearings 300 correspond to three groups of power supply lines, the three first rolling bearings 300 need to be insulated from each other. The shaking head assembly can use an insulating component and arrange an insulating component between two adjacent first rolling bearings 300 to achieve insulation between the two adjacent first rolling bearings 300 and meet the circuit separation requirements.

[0045] Reference Figure 5 In some embodiments of the first aspect of the utility model, the insulating component is an insulating sheet 310, which is annular and mounted on the first rotating shaft 110. The inner rings of two adjacent first rolling bearings 300 clamp one insulating sheet 310, or the outer rings of two adjacent first rolling bearings 300 clamp one insulating sheet 310, and the insulating sheet 310 is used to achieve separation and insulation. The insulating sheet 310 can be made of plastic or rubber, without limitation.

[0046] In addition, the insulating component can also be arranged on the bearing seat where the first rolling bearing 300 is installed, for example, a plurality of separation rings protrude from the inner wall of the bearing seat, and the separation rings are used to separate and insulate the two first rolling bearings 300. Alternatively, the bearing seat is provided with three separated installation grooves, each of which is provided with a first rolling bearing 300, so as to achieve physical isolation and meet the insulation requirements.

[0047] Reference Figure 2 and Figure 4 In some embodiments of the first aspect of the utility model, the second motor 200 is an outer rotor motor, and the outer rotor motor includes an inner stator 220 and an outer rotor housing 230, wherein the inner stator 220 is fixedly connected to the second bearing seat 120, and the second rotating shaft 210 is fixedly connected to the outer rotor housing 230. When the second motor 200 is running, the outer rotor housing 230 drives the second rotating shaft 210 to rotate, while the inner stator 220 is fixed, mainly to keep the second bearing seat 120 and the inner stator 220 relatively fixed, so as to avoid the problem of winding of the output wire 520.

[0048] Reference Figure 6 In some embodiments of the first aspect of the present invention, the second bearing seat 120 includes a seat body 121 and a mounting cylinder 122, the seat body 121 is provided with a bearing cavity 123 for mounting the second rolling bearing 400, the mounting cylinder 122 is arranged on the side of the seat body 121 away from the first rotating shaft 110, the mounting cylinder 122 and the bearing cavity 123 are coaxially arranged, the inner stator 220 is fixed to the outer wall of the mounting cylinder 122, so that the inner stator 220 and the second rotating shaft 210 are coaxial, considering that the second rotating shaft 210 passes through the mounting cylinder 12 2. A positioning ring 124 is provided at one end of the mounting cylinder 122 away from the seat body 121. The second rotating shaft 210 passes through the inner hole of the positioning ring 124. The positioning ring 124 is used to help position the second rotating shaft 210 to improve the assembly speed. A plurality of connecting rods are provided on the periphery of the positioning ring 124. The connecting rods are connected to the inner wall of the mounting cylinder 122 to form a plurality of vents. When the second rotating shaft 210 rotates at a high speed, the vents are used to help ventilation and cooling. The positioning ring 124 and the plurality of connecting rods can increase the structural strength of the mounting cylinder 122.

[0049] Reference Figure 2 In some embodiments of the first aspect of the utility model, the radial thickness of the seat body 121 is more than twice the radial thickness of the mounting tube 122, and a plurality of weight-reducing grooves 125 are provided on the end surface of the seat body 121 away from the mounting tube 122. The plurality of weight-reducing grooves 125 are evenly spaced around the circumference of the bearing cavity 123, which can reduce the weight and improve the structural strength, reduce the wall thickness deviation, and reduce the shrinkage deformation during injection molding.

[0050] The second embodiment of the utility model proposes a fan, which includes an oscillating assembly as in the first embodiment, and the oscillating assembly includes a first motor 100 and a second motor 200. When the oscillating assembly is in operation, the second shaft 210 of the second motor 200 drives the fan blades to rotate, thereby generating airflow to bring coolness to the user. Since the rotation axis of the second motor 200 forms an angle with the rotation axis of the first motor 100, the first motor 100 can drive the second motor 200 to rotate through the first shaft 110 to achieve oscillation and change the direction of air outlet. The outer rings of the three first rolling bearings 300 are connected to the external circuit through the input wire 510, and the inner rings are connected to the second motor 200 through the output wire 520. The circuit is turned on through the rolling element of the first rolling bearing 300 to supply power to the second motor 200. Because the output wire 520 rotates with the second motor 200, the problem of winding of the output wire 520 is eliminated, and the phenomenon of power supply interruption during the operation of the oscillating assembly is prevented, thereby improving the reliability and stability of use.

[0051] It should be understood that other structures and operations of the fan in the embodiment of the present invention are known to ordinary technicians in the field and will not be described in detail here.

[0052] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims

1. The shaking head assembly is characterized in that: include: A first motor, wherein a first rotating shaft of the first motor is provided with at least three first rolling bearings, and a second bearing seat is provided at an end of the first rotating shaft; a second motor connected to the second bearing seat, wherein the rotation axis of the second motor forms an angle with the rotation axis of the first motor, the second motor has a second rotating shaft, a second rolling bearing is connected to one end of the second rotating shaft facing the first motor, and the second rolling bearing is mounted on the second bearing seat; Among them, the outer rings of at least three of the first rolling bearings are connected to input wires, and the input wires are used to connect to an external circuit. The inner rings of at least three of the first rolling bearings are connected to output wires, and the output wires are connected to the second motor to supply power to the second motor.

2. The shaking head assembly according to claim 1, characterized in that: An avoidance plane is provided on the outer wall of the first rotating shaft, a wiring channel is formed between the avoidance plane and the inner ring of the first rolling bearing, and the output wire passes through the wiring channel.

3. The shaking head assembly according to claim 2, characterized in that: The first rotating shaft includes an inner shaft and an outer shaft, one end of the outer shaft is provided with a non-circular hole, the shape of the inner shaft matches the shape of the non-circular hole, the inner shaft is inserted into the non-circular hole, and the other end of the outer shaft is fixedly connected to the second bearing seat.

4. The shaking head assembly according to claim 3, characterized in that: The non-circular hole is a D-shaped hole, and the side wall of the D-shaped hole forms a limited rotation plane, and the limited rotation plane and the avoidance plane are arranged in parallel.

5. The shaking head assembly according to any one of claims 2 to 4, characterized in that: The oscillating head assembly includes an insulating component, and one of the insulating components is arranged between two adjacent first rolling bearings to achieve insulation between the two adjacent first rolling bearings.

6. The shaking head assembly according to claim 5, characterized in that: The insulating component is an insulating sheet, which is annular and is mounted on the first rotating shaft. The inner rings or outer rings of two adjacent first rolling bearings clamp one insulating sheet.

7. The shaking head assembly according to any one of claims 2 to 4, characterized in that: The second motor is an outer rotor motor, which includes an inner stator and an outer rotor housing. The inner stator is fixedly connected to the second bearing seat, and the second rotating shaft is fixedly connected to the outer rotor housing.

8. The shaking head assembly according to claim 7, characterized in that: The second bearing seat includes a seat body and a mounting cylinder, the seat body has a bearing cavity for mounting the second rolling bearing, the mounting cylinder is arranged on the side of the seat body away from the first rotating shaft, the mounting cylinder and the bearing cavity are coaxially arranged, the inner stator is fixed to the outer wall of the mounting cylinder, a positioning ring is arranged at one end of the mounting cylinder away from the seat body, the second rotating shaft passes through the inner hole of the positioning ring, a plurality of connecting rods are arranged on the outer periphery of the positioning ring, and the connecting rods are connected to the inner wall of the mounting cylinder.

9. The shaking head assembly according to claim 8, characterized in that: The radial thickness of the seat body is more than twice the radial thickness of the mounting tube. The end surface of the seat body facing away from the mounting tube is provided with a plurality of weight-reducing grooves, and the plurality of weight-reducing grooves are evenly spaced around the circumference of the bearing cavity.

10. A fan, characterized in that It comprises an shaking head assembly as claimed in any one of claims 1 to 9.

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